20151680

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 51665040

約数和(自身を除く): 31513360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 64, 74, 80, 92, 115, 128, 148, 160, 184, 185, 230, 296, 320, 368, 370, 460, 592, 640, 736, 740, 851, 920, 1184, 1369, 1472, 1480, 1702, 1840, 2368, 2738, 2944, 2960, 3404, 3680, 4255, 4736, 5476, 5920, 6808, 6845, 7360, 8510, 10952, 11840, 13616, 13690, 14720, 17020, 21904, 23680, 27232, 27380, 31487, 34040, 43808, 54464, 54760, 62974, 68080, 87616, 108928, 109520, 125948, 136160, 157435, 175232, 219040, 251896, 272320, 314870, 438080, 503792, 544640, 629740, 876160, 1007584, 1259480, 2015168, 2518960, 4030336, 5037920, 10075840, 20151680]

約数ペア:

[(1, 20151680), (2, 10075840), (4, 5037920), (5, 4030336), (8, 2518960), (10, 2015168), (16, 1259480), (20, 1007584), (23, 876160), (32, 629740), (37, 544640), (40, 503792), (46, 438080), (64, 314870), (74, 272320), (80, 251896), (92, 219040), (115, 175232), (128, 157435), (148, 136160), (160, 125948), (184, 109520), (185, 108928), (230, 87616), (296, 68080), (320, 62974), (368, 54760), (370, 54464), (460, 43808), (592, 34040), (640, 31487), (736, 27380), (740, 27232), (851, 23680), (920, 21904), (1184, 17020), (1369, 14720), (1472, 13690), (1480, 13616), (1702, 11840), (1840, 10952), (2368, 8510), (2738, 7360), (2944, 6845), (2960, 6808), (3404, 5920), (3680, 5476), (4255, 4736)]